/**
 *15位转18位身份证号
 *
 * @param {*} card
 * @returns
 */
function changeFivteenToEighteen(card) {
  if (card.length == '15') {
    var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
    var arrCh = new Array(
      '1',
      '0',
      'X',
      '9',
      '8',
      '7',
      '6',
      '5',
      '4',
      '3',
      '2'
    );
    var cardTemp = 0,
      i;
    card = card.substr(0, 6) + '19' + card.substr(6, card.length - 6);
    for (i = 0; i < 17; i++) {
      cardTemp += card.substr(i, 1) * arrInt[i];
    }
    card += arrCh[cardTemp % 11];
    return card;
  }
  return card;
}

/**
 *校验位的检测
 *
 * @param {*} card
 * @returns
 */
function checkParity(card) {
  //15位转18位
  card = changeFivteenToEighteen(card);
  var len = card.length;
  if (len == '18') {
    var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
    var arrCh = new Array(
      '1',
      '0',
      'X',
      '9',
      '8',
      '7',
      '6',
      '5',
      '4',
      '3',
      '2'
    );
    var cardTemp = 0,
      i,
      valnum;
    for (i = 0; i < 17; i++) {
      cardTemp += card.substr(i, 1) * arrInt[i];
    }
    valnum = arrCh[cardTemp % 11];
    if (valnum == card.substr(17, 1).toLocaleUpperCase()) {
      return true;
    }
    return false;
  }
  return false;
}
/**
 * 校验日期
 *
 * @param {*} year
 * @param {*} month
 * @param {*} day
 * @param {*} birthday
 * @returns
 */
function verifyBirthday(year, month, day, birthday) {
  var now = new Date();
  var now_year = now.getFullYear();
  //年月日是否合理
  if (
    birthday.getFullYear() == year &&
    birthday.getMonth() + 1 == month &&
    birthday.getDate() == day
  ) {
    //判断年份的范围（0岁到100岁之间)
    var time = now_year - year;
    if (time >= 0 && time <= 100) {
      return true;
    }
    return false;
  }
  return false;
}

/**
 * 检查生日是否正确
 *
 * @param {*} card
 * @returns
 */
function checkBirthday(card) {
  var len = card.length;
  //身份证15位时，次序为省（3位）市（3位）年（2位）月（2位）日（2位）校验位（3位），皆为数字
  if (len == '15') {
    var re_fifteen = /^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/;
    var arr_data = card.match(re_fifteen);
    var year = arr_data[2];
    var month = arr_data[3];
    var day = arr_data[4];
    var birthday = new Date('19' + year + '/' + month + '/' + day);
    return verifyBirthday('19' + year, month, day, birthday);
  }
  //身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X
  if (len == '18') {
    var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X|x)$/;
    var arr_data = card.match(re_eighteen);
    var year = arr_data[2];
    var month = arr_data[3];
    var day = arr_data[4];
    var birthday = new Date(year + '/' + month + '/' + day);
    return verifyBirthday(year, month, day, birthday);
  }
  return false;
}
/**
 * 取身份证前两位,校验省份
 *
 * @param {*} card
 * @param {*} vcity
 * @returns
 */
function checkProvince(card, vcity) {
  var province = card.substr(0, 2);
  if (vcity[province] == undefined) {
    return false;
  }
  return true;
}
/**
 * 检查号码是否符合规范，包括长度，类型
 *
 * @param {*} card
 * @returns
 */
function isCardNo(card) {
  //身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X
  var reg = /(^\d{15}$)|(^\d{17}(\d|X|x)$)/;
  if (reg.test(card) === false) {
    return false;
  }
  return true;
}
/**
 *
 *
 * @export
 * @param {*} idCard
 * @returns
 */
export function IdentityCodeValid(idCard) {
  var vcity = {
    11: '北京',
    12: '天津',
    13: '河北',
    14: '山西',
    15: '内蒙古',
    21: '辽宁',
    22: '吉林',
    23: '黑龙江',
    31: '上海',
    32: '江苏',
    33: '浙江',
    34: '安徽',
    35: '福建',
    36: '江西',
    37: '山东',
    41: '河南',
    42: '湖北',
    43: '湖南',
    44: '广东',
    45: '广西',
    46: '海南',
    50: '重庆',
    51: '四川',
    52: '贵州',
    53: '云南',
    54: '西藏',
    61: '陕西',
    62: '甘肃',
    63: '青海',
    64: '宁夏',
    65: '新疆',
    71: '台湾',
    81: '香港',
    82: '澳门',
    91: '国外',
  };
  //是否为空
  if (idCard === '') {
    return false;
  }
  //校验长度，类型
  if (isCardNo(idCard) === false) {
    return false;
  }
  //检查省份
  if (checkProvince(idCard, vcity) === false) {
    return false;
  }
  //校验生日
  if (checkBirthday(idCard) === false) {
    return false;
  }
  //检验位的检测
  if (checkParity(idCard) === false) {
    return false;
  }
  return true;
}

/**
 * 姓名不能是纯数字
 * @param {*} name
 */
export const checkNameValid = (name) => {
  const reg = /^[^\d]+$/;
  return reg.test(name);
};

// console.log(IdentityCodeValid('452123199111306175'));
